Problem connecting ESS/MSS iviews to backend

Hi,

I am using ESS/MSS package(webdynpro) on EP 7.0. I have set the portal system, SLD and JCO connections to refer to ERP CLNT 150 which is based on netweaver 2004s with Integrated ITS.

But when I m running the ivews its poiting to ERP CLNT 120 by default for fetching the data. Though I have mentiond the Client as 150 in portal system, SLD and JCO conections that is user by the ivews.

Any suggestions why its pointing to CLNT 120 instead of Clnt 150.

Is the problem lies in portal or there are some config to be made in backend.

Regards

Debasish